<template>
  <div class="container" id="container" style="z-index: 1; width: 700px;height: 800px"></div>
</template>
<!--name:"fly"-->
<script>
import * as echarts from "echarts";
import china from "../china.json";

export default {
  data(){

  },
  mounted () {
    this.$nextTick(_ => {
      this.initMapInfo()
    })
  },
  methods: {
    initMapInfo() {
      // 地图数据
      var chinaGeoCoordMap = {
        黑龙江: [127.9688, 45.368],
        内蒙古: [110.3467, 41.4899],
        吉林: [125.8154, 44.2584],
        北京市: [116.4551, 40.2539],
        辽宁: [123.1238, 42.1216],
        河北: [114.4995, 38.1006],
        天津: [117.4219, 39.4189],
        山西: [112.3352, 37.9413],
        陕西: [109.1162, 34.2004],
        甘肃: [103.5901, 36.3043],
        宁夏: [106.3586, 38.1775],
        青海: [101.4038, 36.8207],
        新疆: [87.9236, 43.5883],
        西藏: [91.11, 29.97],
        四川: [103.9526, 30.7617],
        重庆: [108.384366, 30.439702],
        山东: [117.1582, 36.8701],
        河南: [113.4668, 34.6234],
        江苏: [118.8062, 31.9208],
        安徽: [117.29, 32.0581],
        湖北: [114.3896, 30.6628],
        浙江: [119.5313, 29.8773],
        福建: [119.4543, 25.9222],
        江西: [116.0046, 28.6633],
        湖南: [113.0823, 28.2568],
        贵州: [106.6992, 26.7682],
        云南: [102.9199, 25.4663],
        广东: [113.12244, 23.009505],
        广西: [108.479, 23.1152],
        海南: [110.3893, 19.8516],
        上海: [121.4648, 31.2891],
      }
      // 飞线点数据
      var chinaDatas = [
        [
          {
            name: '黑龙江',
            value: 0,
          },
        ],
        [
          {
            name: '内蒙古',
            value: 0,
          },
        ],
        [
          {
            name: '吉林',
            value: 0,
          },
        ],
        [
          {
            name: '辽宁',
            value: 0,
          },
        ],
        [
          {
            name: '河北',
            value: 0,
          },
        ],
        [
          {
            name: '天津',
            value: 0,
          },
        ],
        [
          {
            name: '山西',
            value: 0,
          },
        ],
        [
          {
            name: '陕西',
            value: 0,
          },
        ],
        [
          {
            name: '甘肃',
            value: 0,
          },
        ],
        [
          {
            name: '宁夏',
            value: 0,
          },
        ],
        [
          {
            name: '青海',
            value: 0,
          },
        ],
        [
          {
            name: '新疆',
            value: 0,
          },
        ],
        [
          {
            name: '西藏',
            value: 0,
          },
        ],
        [
          {
            name: '四川',
            value: 0,
          },
        ],
        [
          {
            name: '山东',
            value: 0,
          },
        ],
        [
          {
            name: '河南',
            value: 0,
          },
        ],
        [
          {
            name: '江苏',
            value: 0,
          },
        ],
        [
          {
            name: '安徽',
            value: 0,
          },
        ],
        [
          {
            name: '湖北',
            value: 0,
          },
        ],
        [
          {
            name: '浙江',
            value: 0,
          },
        ],
        [
          {
            name: '福建',
            value: 0,
          },
        ],
        [
          {
            name: '江西',
            value: 0,
          },
        ],
        [
          {
            name: '湖南',
            value: 0,
          },
        ],
        [
          {
            name: '贵州',
            value: 0,
          },
        ],
        [
          {
            name: '广西',
            value: 0,
          },
        ],
        [
          {
            name: '海南',
            value: 0,
          },
        ],
        [
          {
            name: '上海',
            value: 1,
          },
        ],
      ]

      let formdata = '重庆' // 中心点

      var convertData = function (data) {
        var res = []
        for (var i = 0; i < data.length; i++) {
          console.log(data[i])
          var dataItem = data[i]
          var fromCoord = chinaGeoCoordMap[dataItem[0].name]
          var toCoord = [108.384366, 30.439702] //中心点地理坐标
          if (fromCoord && toCoord) {
            res.push([
              {
                // 飞线从哪里出发
                coord: toCoord,
              },
              {
                // 飞线去往哪里
                coord: fromCoord,
                value: dataItem[0].value,
              },
            ])
          }
        }
        return res
      }
      var series = []
      ;[[formdata, chinaDatas]].forEach(function (item, i) {
        console.log(item)
        series.push(
            {
              type: 'lines',
              coordinateSystem: 'geo',
              zlevel: 2,
              effect: {
                show: true,
                period: 4, //箭头指向速度，值越小速度越快
                trailLength: 0, //特效尾迹长度[0,1]值越大，尾迹越长重
                symbol: 'arrow', //箭头图标
                symbolSize: 5, //图标大小
                color: '#fcdd6e', // 图标颜色
              },
              lineStyle: {
                normal: {
                  show: true,
                  width: 1, //尾迹线条宽度
                  opacity: 1, //尾迹线条透明度
                  curveness: 0.3, //尾迹线条曲直度
                  color: '#fcdd6e', // 飞线颜色
                },
                color: '#fcdd6e',
              },
              data: convertData(item[1]),
            },
            {
              type: 'effectScatter',
              coordinateSystem: 'geo',
              zlevel: 2,
              rippleEffect: {
                //涟漪特效
                period: 4, //动画时间，值越小速度越快
                brushType: 'stroke', //波纹绘制方式 stroke, fill
                scale: 3, //波纹圆环最大限制，值越大波纹越大
                color: '#fcdd6e',
              },
              label: {
                normal: {
                  show: false,
                  position: 'right', //显示位置
                  offset: [5, 0], //偏移设置
                  formatter: function (params) {
                    //圆环显示文字
                    return params.data.name
                  },
                  fontSize: 13,
                },
                emphasis: {
                  show: false,
                },
              },
              symbol: 'circle',
              symbolSize: function (val) {
                return 5 //圆环大小
              },
              itemStyle: {
                normal: {
                  show: false,
                  color: '#fce182',
                },
              },
              data: item[1].map(function (dataItem) {
                return {
                  //在这里定义你所要展示的数据
                  // name: dataItem[0].name,
                  // value: chinaGeoCoordMap[dataItem[0].name].concat([dataItem[0].value]),
                  name: dataItem[0].name,
                  value: chinaGeoCoordMap[dataItem[0].name].concat([dataItem[0].value]),
                }
              }),
            },
            //中心点
            {
              type: 'effectScatter',
              coordinateSystem: 'geo',
              zlevel: 15,
              rippleEffect: {
                period: 4,
                brushType: 'stroke',
                scale: 4,
                color: '#38ff85',
              },
              label: {
                normal: {
                  show: false,
                  position: 'right',
                  //offset:[5, 0],
                  color: '#38ff85',
                  formatter: '{b}',
                  textStyle: {
                    color: '#38ff85',
                  },
                },
                emphasis: {
                  show: false,
                  color: '#38ff85',
                },
              },
              symbol: 'circle',
              symbolSize: 5,
              itemStyle: {
                color: '#38ff85',
              },
              data: [
                {
                  name: item[0],
                  value: chinaGeoCoordMap[item[0]].concat([10]),
                },
              ],
            }
        )
      })
      this.initMap(series)
    },

    initMap(series) {
      let myChart = echarts.init(document.getElementById('container'))
      let option = {
        // bgColor: '#1a1e45',
        tooltip: {
          trigger: 'item',
        },
        legend: {
          orient: 'horizontal', //图例的排列方向
          // textStyle: { color: '#1a1e45' },
          x: 'left', //图例的位置
          y: '-20000000000000',
        },
        visualMap: {
          //颜色的设置  dataRange
          // textStyle: { color: '#1a1e45' },
          x: 'left',
          y: 'bottom',
          // splitList: [{ start: 0, end: 150000 }],
          show: false,
          // text:['高','低'],// 文本，默认为数值文本
          // color: ['#1a1e45'],
        },
        geo: {
          map: 'china',
          zoom: 1.2,
          label: {
            normal: {
              show: false,
              textStyle: {
                color: '#FFFFFF',
              },
            },
            emphasis: {
              show: false,
            },
          },
          roam: false, //是否允许缩放
          itemStyle: {
            normal: {
              color: '#1a1e45', //地图背景色
              borderColor: '#22ccfb', //省市边界线00fcff 516a89
              borderWidth: 1,
              textStyle: '#fff',
            },
            emphasis: {
              color: '#22ccfb', //悬浮背景
            },
          },
          data: [],
        },
        series: series,
      }

      myChart.setOption(option)
    },
  }
}
</script>

<style scoped>

</style>